Plant for manufacturing water gas



May 28, 1929. w ERbMANN 1,715,064

PLANT FOR MANUFACTURING WATER GAS Filed Aug. 50, 1924 s Sheets-Sheet l T a W May 28, 1929.

M. W. ERDMANN PLANT FOR MANUFACTURING WATER GAS Filed Aug. 50, 1924 3 Sheets-Sheet 2 May 28, 1929. M. w. ERDMANN PLANT FOR MANUFACTURING WATER GAS Filed Aug. 30, 1924 3 Sheets-Sheet 3 Patented May 2s, 1929.

UNITED STATES "PATENT, OFFICE.

MAX W. ERDMANN, OF CHICAGO, ILLINOIS.

PLANT non manurac'ruame warm GAS.

Application filed August 30, 1924. Serial No. 735,211.

larly it relates to improvements in the apparatus for and the method of carburation of watergas in gas plants and the like.

The usual way of carburating watergas by means of oil consists in introducing oil directly-into the-'watergas, when this gas enters from the generator into the carbureter. The

oil is injected directly into the carbureter and causes thereby great losses of heat units of the oil, and this in turn causes higher manufacturing cost because more oil has to be .used to produce gas of the necessary made,

1 that means gas g1ving oif the intended heat units. In order to mix this oil thoroughly with the watergas it was necessary to build checkerbricks into the carbureter, andthese bricks burn a great portion of the oil without giving off the carbon combinations of.

this oil to the watergas, so that as stated above a great part of the heat .units of the oil is lost.

The object of the present invention is to 2 eliminate this waste of heat units and thereby also to reduce the amount of oil used to produce watergas of a desired grade.

A further object of the invention is to pro duce an apparatus to vaporize the oil before it is injected into the watergas for carburetion.

A still further object of the invention is to utilize the heat of the generated watergas to be carbureted to vaporize the oil before it is injected into the watergas. To this end the invention provides a heating apparatus in which the oil is changed into oil vapor of 300 to 450 degrees Fahrenheit according to the kind and grade of oil used, the -watergas traveling from the generator to the carbureter being utilized for heating purposes, without coming into direct contact with the 011.

, The-invention furthermore provides a pin rality'of spray nozzles, through which the 4 vaporized oil is injected into the carbureter.

These nozzles are arranged on the outer periphery of the carbureter and are preferably disposed spirally about the same.

In the drawings an embodiment of the preferred apapratus is shown like index numerals designating like parts in the difierent figures of the drawings, in which Fig. 1 is anelevation, partly in section, of a generator, a carbureter and a superheater of a gas plant,wherein the vaporizing apparatus is interposed between the generator and the carbureter and the nozzles are shown on the carbureter,

Fig. 2 is a sectional view taken on line 2-2 of Fig. 1, Fig. 3 is a sectional view taken on line 33 of Fig. 1,

Fig. 4 is a sectional view taken on line 44 of Fig. 3, y

Fig. 5 is an inner end view of one of thefi spray nozzles,

Fig. 6 is a top view showing a modified from or connection-between the main pipe for the Oll vapor and the nozzle,

Fig. 7 is a sectional view taken on line 7--7 of Fig. 1,

Fig. 8 is a sectional view taken on line 8 -8 ofFig.7,

Fig. 9 is a sectional view taken on line 9 9 of Fig. 8, I

Figs. 10 and '11 are vertical section views showing modifications of the pipe leading the oil through the heater.

- In the drawings 1 is the watergas generator, 2 the carbureter and 3 the superheater.- The watergas is conducted through these three devices and goes from the superheater to the so called scrubber or"washer, which is not shown.

The oil vaporizer 4 is interposed between the generator and the carbureter and is connected with the two by means of the pipes 55, and the valves 66 provided in these pipes serve to regulate the flow of the watergas and to interrupt the flow entirely if so desired.

In Figures 7, 8 and 9 the oil vaporizer 4 is shown in detail.- It consists of a casing 7, preferably made ofcast iron, and has flanges 8-8 for connecting it to the pipes 5 through the valves 6. The casing 7 contains heating chambers 9, 9, 9. These may be cast integrally with the casing or may be formed by pipes, preferably steel pipes, inserted in the casing. The heating chambers may either extend diagonally through the casing as shown in Figures 7, 8 and 9, or may be formed in a zigzag path as shown by 9' in Fig. 10, or may be bentas shown by 9 in Fig. 11. The chambers 9, 9', 9 have an opening 10 at their end to admit the oil and an exit openin 11 at their lower end, through which the o1 vapor passes into a pipe 12 leading to the carbureter. v i v The chambers 9, 9', 9 are heated by the hot watergas coming from the generator and flowing through the pipes 5, valves 6 and casing 7 into the carbureter. The inside dimensions of the vaporizer are such that the chambers 9, 9', 9 do not diminish the passage space for the flowing watergas. The vaporizer casing has at its lower end an extension 13 for the purpose of collectin ashes, dust and the like. The lower end of this extension is open and a suitable removable closure 14 for this opening is provided, so that the accumulated ashes and so forth can be removed when so desired. v

Above the vaporizer 4 a cylinder 15 1s provided, in which a piston with the piston,

rod 16 is reciprocated by any suitable means (not shown). A pressure equalizing p1 e 17 leads from the vaporizer to the top 0 the cylinder 15. This arrangement prevents not only that the oil flow will be hindered, but also that the oil is pressed back against the piston. By means of the pipe 17 opening above the piston the pressure in the cylinder 15 above and below said piston is'equalized.

A pipe 18 connects the upper part of cylinder 15 with a source of oil (not shown) and the 011 may be fed through said pipe in any desired manner. A valve 19 is provided in the pipe 18 adjacent the cylinder 15. The lower part ner that it surrounds the carbureter and is I main vapor pipe. Each va or spray consists preferably bent helically.

The vapor sprays communicate with the of a cylindrical part 25, t e discharge end .Whereofds conically shaped. This part is made from heat resisting material and penetrates the wall of the carbureter. In Fig. 2 four such sprays are shown, but, if desired, more or less sprays may be provided. It is however preferred to arrange said sprays in equal distances about the circumference of the carbureter. The spray has a centrally located bore 26. This bore is round along the greater part of its length, but the port-ion adjacent t e discharge end is flattened, so that the discharge opening appears as a slot 27 as shown in 'Fig. 5. This slot lies preferably horizontally or in the plane of. the spiral formed by the vapor pipe 12. The outer end of the bore 26 is provided with a thread 28 to receive a pipe 29. The vapor spray is 10- cated in a sleeve 30 and is secured in the same by means of a flange nut 31. The sleeve has a flange 32. A flanged pipe 33 is riveted to the carbureter and the flange 32 of the sleeve is fastened to the outer flange of pipe 33 by ,and is vaporized. Thereby pipe 38 extends vertically from the vapor pipe and is connected with an elbow sha ed pipe 38 by'means of union 38*. The ot er end of the elbow is connected vwith-one of the unions 36. This construction makes it possible, to remove the vapor spray 25, the sleeve 30, the conductor pipe '29, the unions 36 and the valve 37 as one unit in case it should be desired to repair or clean these parts. The removal of the unit can be efl'ected by simply loosening the union 38 and the bolts 35. The unit can then be drawn out of the carbureter, because the main vapor pipe 12 is located above the va or spray..

The device operates as ollows:

When the fuel in the-watergas generator is air blasted, the blast gases flow through the oil vaporizer 4, the carbureter 2 to the superheater 3, and from there into the smoke stack. These hot gases preheat the vaporizer 4. Then steam is blown into the generator to create watergas and at the same time the valve 19 is closed and the valve 21 is opened. Preferabl these valves are actuated automatically. he valve 22 is adjustable by hand to regulate the flow of the oil. The oil enters the heating chambers 9 of the vaporizer 4 a pressulre is created similar to the pressure in a steam boiler and this pressure forces the oil vapor into the main pipe 12, helically disposed about the carbureter. From there the vapor is pressed through the sprays 25 into the-carbureter. Owing to the spiral formation of the main vapor pipe 12, the vapor sprays enter the'carbureter in difl'erent superimposed planes so that the oil vapor injected into the carburetor will be disposed in several superimposed layers. The watergas entering the carburetor from the generator and flowing through thecarbureter into the superheater must transverse these layers of oil vapor, so that a very intimate and thorough mixture of watergas and oil vapor will result. This mixture enters then the superheater, where a further vaporizing and fixing of the oil occurs, so that the oil vapor will enrich the watergas. The valve 37 is use the flow of oil vapor into the spray, so that the desired amount of oil vapor will enter into the carbureter. I 5

I Having described my invention and explained the objects thereof, I declare that.

what I claim and desire to secure by Letters Patent is:

1. A plant for manufacturing watergas,

d to regulate comprising a water gas generator, a carbu retor and means for introducing oil vapors directly into the carburetor, said means comprising fiat flaring nozzles disposed helically 'about the circumference of the carburetor,

said nozzles injecting said vapors into said carburetor in substantially fan-like streams from a plurality of different directions.

2. A lant for manufacturing water as, comprising a water gas generator, a car uretor, a passage leading from said generator to said carburetor, said passage having an enlargment therein, a source of oil, an oil vaporizing conduit connected with said source and extending transversely through the enlargement in said passage heated by the gases passing from said generator through said passage, and means for introducing the oil vapors from said vaporizing conduit into said carburetor at circumferentially and longitudinally spaced points along said carburetor whereby a substantially uniform intermixture of the Water gas and 'oil vapor is obtained.

3. In a plant for manufacturing watergas, a vaporizer comprising a chamber intowhich heated water gas is introduced, an oil vaporizing chamber therein, a cylinder containing oil and communicating with said vaporizing chamber and a piston adapted'to reciprocate in said cylinder to force oil into the vaporizing chamber.

4. In a plant for manufacturing watergas', a vaporizer comprising a chamber into which heated water gas is introduced, an oil vaporizing chamber therein, a cylinder containing izing chamber therein, 'a cylinder containing 7 oil and communicating with said vaporizing chamber, means for automatically interrupting such communication, a piston adapted to reciprocate in said cylinder, and means for regulating the amount of oil forced into the 4 vaporizing chamber by the piston. 1

In witness whereof I .have attached hereunto my signature.

MAX W. ERDMANN. 

